AD7191BRUZ Part Information

Details for AD7191BRUZ by Analog Devices

Semiconductors - ICs>Data & Signal Conversion>Analog-to-Digital Converters - ADC

Part Description

The AD7191 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) ADC. The on-chip low noise gain stage means that signals of small amplitude can be interfaced directly to the ADC. It contains two differential analog inputs. The part also includes a temperature sensor that can be used for temperature compensation. For ease-of-use, all the features of the AD7191 are controlled by dedicated pins. The on-chip PGA has a gain of 1, 8, 64, or 128, supporting a full-scale differential input of ±5 V, ±625 mV, ±78 mV, or ±39 mV. The output data rate can be programmed to 10 Hz, 50 Hz, 60 Hz, or 120 Hz. Simultaneous 50 Hz and 60 Hz rejection is obtained when the output data rate is set to 10 Hz or 50 Hz; 60 Hz only rejection is obtained when the output data rate is set to 60 Hz. The AD7191 can be operated with the internal clock, or an external clock can be used. The part operates with a power supply of 3 V to 5.25 V. It consumes a current of 4.35 mA. It is available in a 24-lead TSSOP package.

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Part Features

  • Pin-programmable output rate Output data rate: 10 Hz, 50 Hz, 60 Hz, 120 Hz Pin-programmable PGA Gain: 1, 8, 64, 128 Pin-programmable power-down and reset RMS noise: 15 nV @ 10 Hz (gain = 128) Up to 21.5 noise free bits (gain = 1) Internal or external clock Bridge power-down switch Offset drift: 5 nV/u00b0C Gain drift: 1 ppm/u00b0C Specified drift over time Simultaneous 50 Hz/60 Hz rejection Internal temperature sensor Power supply: 3 V to 5.25 V Current: 4.35 mA Temperature range: u201340u00b0C to +105u00b0C Package: 24-lead TSSOP

Part Specifications

Resolution (Bits) 24bit
Sampling Rate 120SPS
Input Channel Type Differential
Data Interface Serial
Supply Voltage Type Single
Supply Voltage Min 3V
Supply Voltage Max 5.25V
ADC / DAC Case Style TSSOP
No. of Pins 24Pins
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range Triple 24-Bit Sigma-Delta ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (07-Jul-2017)
Base Number 7191
IC Case Style TSSOP
No. of Channels 2Channels
Operating Temperature Range -40°C to +105°C
Supply Current 4mA
Supply Voltage Range 3V to 5.25V
Supply Voltage Range - Analogue 3V to 5.25V
Supply Voltage Range - Digital 2.7V to 5.25V
RoHS Compliant

Alternative Part Descriptions

  • Analog Devices, AD7191BRUZ | RS Components
  • A/D converter IC [Analog Devices] AD7191BRUZ A/D converter IC | Distrelec
  • CONVERTER - ADC | Richardson RFPD

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What category does AD7191BRUZ fall under?

The AD7191BRUZ is listed under Semiconductors - ICs > Data & Signal Conversion > Analog-to-Digital Converters - ADC.

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You can view similar parts to AD7191BRUZ when available in the Analog-to-Digital Converters - ADC range under the specifications section at the bottom of the details page.

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Is the AD7191BRUZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

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Authorised distributors including RS Components, Distrelec and Richardson RFPD have stock available or on a lead time for AD7191BRUZ.

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